I got this to replace the Logitech MX500. In fact I have been through 2 MX500 mice through the years. Aside from the fact that the MX500 was falling apart, one of the reasons I got a BT mouse was because I have so many USB things hanging off my MacBook Pro USB port (I reserve the other USB port for flash disks, unfortunately), that sometimes the MX500 would jitter and stop registering clicks.
This mouse was cheaper than the MX Revolution.
It's good. I didn't need to install Intellipoint 6.2.1 for my MacBook Pro Rev A to sync it. Built in BT, not dongle (unused). I was hoping to not have to install Intellipoint, and just use the extra buttons for Expose. I didn't need Logitech software for the MX500.
Unfortunately without Intellipoint, the mouse pointer acceleration is off. It doesn't "slow down" during fine movements. Or moves too slowly in large movements. Or isn't responsive, then overcompensates milliseconds later. It's not unusable -- just highly irritating in small amounts.
So, Intellipoint. It's just like Microsoft, to have a "performance slider" for a mouse. I mean, WTF ridiculous. I have mine to "performance +" as opposed to "battery +".
To be fair though, Intellipoint does allow customisation of the buttons, by application. Which is a "payware" feature of USB overdrive (and maybe Steermouse). However, I already use the extra buttons for "expose", "expose application", and "expose desktop"... So, unfortunately I don't benefit from that.
I actually like the charging dock, compared to the Logitech MX500. Having the mouse horizontal looks neater. Also the connection is so far more secure, although that was partly because the MX500 was many years old (got it when they were first released).
To be honest, the only thing I've noticed about the "laser" is that there isn't a red light under the mouse.
Pros:
works.
symmetrical.
sidescrolling.
Other cons:
Takes several seconds to wake from sleep (i have set my computer to not wake up to Bluetooth commands because I found that contributed to the computer waking up in my bag). This delay is exactly the same as the one affecting my Apple wireless keyboard.
A bit light. Feels hollow.
Extra buttons are in the wrong place, IMHO. I suppose they are "out of the way".
Middle button is hard to push down.
I have a problem with spending heaps of $ on a mouse, which made this a major purchase for me. I just couldn't get myself to get the MX Revolution, which I thought was more overpriced that this one.
Btw, this is not my travel mouse. I have a Logitech V270 that lives in my computer bag for that.